SN74LVC2244ADWRE4

Series:	74LVC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Buffer, Non-Inverting
Number of Elements:	2
Number of Bits per Element:	4
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	12mA, 12mA
Voltage - Supply:	1.65 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	74LVC2244

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Introduction of SN74LVC2244ADWRE4

The SN74LVC2244A is a single-supply hex bus buffer that operates with either 2.7 V to 5.5 V supply. This device is designed for 1.65-V to 5.5-V VCC operation, and it is interface-compatible with 5 V devices. The SN74LVC2244A is designed for driving commercial or military data and address buses. The 6-bit wide noninverting buffer/line driver is designed for minimal power consumption, and it can be used with TTL or CMOS logic at data transfer rates up to 20 MHz ( depending on load) . The SN74LVC2244A is ideal for driving bus lines as a result of its high drive capability.

Application Field of SN74LVC2244ADWRE4

The SN74LVC2244A is a high performance, dual-direction (line driver, buffer receiver), low power, hex bus buffer that operates with either 2.7 V to 5.5 V supply. It features:

• Bus-Hold Data Inputs
• Input Homogeneity
• Low Input Current Requirements (IIN ≤ 1 μA)
• Input–Output Voltage Differential of 1.5 V for TTL Compatible Operation
• Broad Range of Supply Voltage (VCC from 2.7 V to 5.5 V)
• High Output Drive of 10 mA (sink and source)
• High Speed: Major speed grade of 20 MHz

Therefore, the SN74LVC2244A is an ideal component for a variety of applications such as:

• Low-power logic gates and data pre-distortion
• Bus-oriented logic (BOL)
• High-speed busses
• Buffer registers
• Interfacing with field-programmable gate arrays
• Capturing large amounts of digital data
• Data multiplexing and demultiplexing
• Data conversion
• Interfacing with analog-to-digital converters
• Embedded controllers
• High-speed memory and peripheral interfaces

Working Principle of SN74LVC2244ADWRE4

SN74LVC2244A is a 6-bit wide noninverting buffer/line driver that operates with a supply voltage of 2.7 V to 5.5 V, and it is interface-compatible with 5 V devices.It consists of two 3-state inverting buffers, each with two bus hold circuits. The bus hold circuits hold the outputs from their last valid data state until directed to do so by the associated control signals. The device features a 3-state output with function tables allowing various combinations of active, high impedance, and active-low outputs. The device is designed to disable one road of the buffer when 0 V is applied to the output-enable pin. In normal operation, the control input (CEx) is held high. This enables the gates, allowing data to propagate from the corresponding data inputs (D0 to D5) to the outputs (Q0 to Q5).The outputs are enabled when the output-enable input (OE) is held low. In this state, the outputs are active. When the output-enable input is high, the outputs are disabled and each is in a high-impedance state.The data in the SN74LVC2244A is transferred from the inputs to the outputs on the falling edge of the clock (transition from high-to-low). The data is retained at the outputs if the enable input is high. The data on the outputs will remain until the device is disabled and the enable input set to high again.

Conclusion

The SN74LVC2244A is a 6-bit wide noninverting buffer/line driver, designed with low power consumption and high drive capability. It is capable of driving commercial or military data and address buses with data transfer rates up to 20 MHz. This device is suitable for a wide range of applications such as low-power logic gates, bus-oriented logic, high-speed busses, buffer registers, interfacing with field-programmable gate arrays, capturing large amounts of digital data, data multiplexing and demultiplexing, data conversion, interfacing with analog-to-digital converters, embedded controllers, and high-speed memory and peripheral interfaces. With a 3-state output and function tables allowing various combinations of active, high impedance, and active-low outputs, the SN74LVC2244A is an ideal component to provide signal buffer, translation, or even termination for digital systems.

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